MXUS 3000 Hub Motor - V1 V2 V3

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MAGICPIE3FOCUSPOWER   10 kW

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Re: MXUS 3000 Hub Motor

Post by MAGICPIE3FOCUSPOWER » Jan 29 2015 5:35am

For 20S (75V) 4T is the best choice right? looking....at speed:torque ratio?
Nothing is perfect until I touch it...

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Re: MXUS 3000 Hub Motor

Post by chucho » Jan 29 2015 8:04am

MAGICPIE3FOCUSPOWER wrote:For 20S (75V) 4T is the best choice right? looking....at speed:torque ratio?
What rear wheel are you gonna use?
And amps?
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Re: MXUS 3000 Hub Motor

Post by teslanv » Jan 29 2015 8:35am

For any winding, the smaller the wheel the better, if it suits your target speed. For me, that is a 3T winding, 17" Moto rim with a 21.5" O.D. tire and 120+ phase amps. With a 20S battery, my target speed is 50 MPH. If I can't get 50 MPH with 20S, I have a 4115 controller that can take 150V max. :twisted:
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Re: MXUS 3000 Hub Motor

Post by arkmundi » Jan 29 2015 8:46am

I started this 80 Day Race Open Source Design thread and am considering it, as part of a design & build team. Too old to actually be a driver on the race itself. Like NASCAR, opportunity for some branding for those contributing know-how, parts & tools.

So what about a MXUS 3000 motor as part of a build? I'm thinking that all things considered - the rules - a high tech tandem bicycle with front & rear motors would work great. With lots of battery - enough to cover 320 miles, with hard pedalling. That's the average daily mileage to cover the route in eighty days. The secret formulae of success will be in being light weight and fast solar charging of the entire battery. Rules allow for 8-hour rest periods that don't count towards race time. So that would be enough I think, if taken 8 am to 4 pm, in the country, to maximize solar charging. And riding hard 4 pm to 8 am. :mrgreen:

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Re: MXUS 3000 Hub Motor

Post by diggler » Jan 30 2015 5:04am

For any winding, the smaller the wheel the better, if it suits your target speed. For me, that is a 3T winding, 17" Moto rim with a 21.5" O.D. tire and 120+ phase amps. With a 20S battery, my target speed is 50 MPH. If I can't get 50 MPH with 20S, I have a 4115 controller that can take 150V max. :twisted:
NICE!!!
Are you going to upgrade the phase wires right away?
What is the battery amps of that controller?
You should post up a video on this thread when you get it running!!!
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MAGICPIE3FOCUSPOWER   10 kW

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Re: MXUS 3000 Hub Motor

Post by MAGICPIE3FOCUSPOWER » Jan 30 2015 11:36am

chucho wrote:
MAGICPIE3FOCUSPOWER wrote:For 20S (75V) 4T is the best choice right? looking....at speed:torque ratio?
What rear wheel are you gonna use?
And amps?
Thanks for help all!

I have 150A cont. and max. 350A phase controller and will use a 26 inch tire.
Nothing is perfect until I touch it...

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Re: MXUS 3000 Hub Motor

Post by \/ampa » Jan 30 2015 12:22pm

MAGICPIE3FOCUSPOWER wrote: max. 350A phase controller.
For 1 second ? :wink:

MAGICPIE3FOCUSPOWER   10 kW

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Re: MXUS 3000 Hub Motor

Post by MAGICPIE3FOCUSPOWER » Jan 30 2015 2:21pm

Haha I think you are right :mrgreen: :lol:


But don't know how long the motor will last at this current :mrgreen:
Last edited by MAGICPIE3FOCUSPOWER on Jan 30 2015 2:31pm, edited 1 time in total.
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Re: MXUS 3000 Hub Motor

Post by teslanv » Jan 30 2015 2:28pm

MAGICPIE3FOCUSPOWER wrote:Haha I think you are right :mrgreen: :lol:
The MXUS 45mm motor is rated for 6Kw Peak. Even at just 48V, 350 Phase amps is 16.8Kw.
You may want to beef up those phase wires a bit. :wink:
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MAGICPIE3FOCUSPOWER   10 kW

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Re: MXUS 3000 Hub Motor

Post by MAGICPIE3FOCUSPOWER » Jan 30 2015 2:33pm

Thank you! :D

I have a question about your graph at right of the graph I see phase currents.
90A is still safe right?
Nothing is perfect until I touch it...

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Re: MXUS 3000 Hub Motor

Post by \/ampa » Jan 30 2015 2:34pm

teslanv wrote:
MAGICPIE3FOCUSPOWER wrote:Haha I think you are right :mrgreen: :lol:
The MXUS 45mm motor is rated for 6Kw Peak. Even at just 48V, 350 Phase amps is 16.8Kw.
You may want to beef up those phase wires a bit. :wink:
Isnt the controller bucking the voltage down on low RPM ?

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teslanv   100 MW

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Re: MXUS 3000 Hub Motor

Post by teslanv » Jan 30 2015 2:35pm

MAGICPIE3FOCUSPOWER wrote:Thank you! :D

I have a question about your graph at right of the graph I see phase currents.
90A is still safe right?
90 Phase Amps should be fine, as long as you are not running it WOT for extended periods.
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Re: MXUS 3000 Hub Motor

Post by MAGICPIE3FOCUSPOWER » Jan 30 2015 2:36pm

Thanks! 8) :mrgreen:
Nothing is perfect until I touch it...

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Re: MXUS 3000 Hub Motor

Post by madin88 » Jan 31 2015 4:08am

\/ampa wrote:
teslanv wrote:
MAGICPIE3FOCUSPOWER wrote:Haha I think you are right :mrgreen: :lol:
The MXUS 45mm motor is rated for 6Kw Peak. Even at just 48V, 350 Phase amps is 16.8Kw.
You may want to beef up those phase wires a bit. :wink:
Isnt the controller bucking the voltage down on low RPM ?
yes it works like a step down converter and 350A Phase must not be 16.8kW at 48V. If it would be battery current, than yes^^
however, the motor will anyway see these 350A for less than a second or two (drops quick) because of battery current limit which kicks in. acceleration at take off will be harder, but the price is lots of heat generated in the motor. decide your own if its worth it.
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Re: MXUS 3000 Hub Motor

Post by markz » Jan 31 2015 4:12am

About to lace up my motor, is EVERYONE dishing their wheels? Seems like a major learning curve to dish the wheel.
I got a regular 19" mountain bike, Specialized Rockhopper.

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Re: MXUS 3000 Hub Motor

Post by madin88 » Jan 31 2015 4:21am

the spoke flange is not centered to the axle flanges (its some mm near brake rotor side). this makes it possible to install wider cassette.
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Re: MXUS 3000 Hub Motor

Post by arkmundi » Jan 31 2015 10:18am

markz wrote:About to lace up my motor, is EVERYONE dishing their wheels? Seems like a major learning curve to dish the wheel.
I got a regular 19" mountain bike, Specialized Rockhopper.
You can take the approach of Paul at EM3ev - I've got one of his laced MACs. Which is to lace the spokes with the head all pointing in the same direction. What I'll be doing when I get around to it.
Last edited by arkmundi on Jan 31 2015 2:19pm, edited 1 time in total.

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Re: MXUS 3000 Hub Motor

Post by teslanv » Jan 31 2015 12:29pm

Phase resistance for the MXUS XF40-45H V2 (Al Stator) 21X3T Winding (Stock Phase Wires):
0.216V Voltage drop with 3.04A current.
.216/3.04=0.071 Ohms Resistance.

At 120A Phase Current, that will generate (120^2x.071) = 1022 Watts of Loss

KV tested at 565.7 RPM at 48.1V, so 11.76 KV.
2.0A current at No Load.

That's right inline with the Fast Wind Crown...
http://www.ebikes.ca/shop/ebike-parts/m ... 00r24.html
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louis raaijmakers   100 W

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Re: MXUS 3000 Hub Motor

Post by louis raaijmakers » Feb 02 2015 4:22pm

hello es
i got a mxus in a 26 inch wheel from the factory.
but i hit a curbe hard and now my rim is a bit f##ked up. :cry:
i was thinking of going to 19 ich motor wheel but does any one know how to do this?
or has anyone already done it?
then i would like to know the length of the spokes

greetings louis

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Re: MXUS 3000 Hub Motor

Post by Relanium » Feb 02 2015 4:41pm

You have to get the rim first (Make sure it's 36 hole), measure ERD (Efective Rim Diameter) and then measure the motor, decide what thickness spokes you want and then use spoke calculator.
And use different calculators, to be sure to get the right length.
Then find a bike shop or internet seller to make you custom length spokes.
Once you have the spokes, just put them in and lace the wheel.
I know, it sounds scary, but it's actualy quite easy :wink:

Just search around the forum and web a little, there's a ton of material about lacing.

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Re: MXUS 3000 Hub Motor

Post by Rix » Feb 02 2015 7:33pm

louis raaijmakers wrote:hello es
i got a mxus in a 26 inch wheel from the factory.
but i hit a curbe hard and now my rim is a bit f##ked up. :cry:
i was thinking of going to 19 ich motor wheel but does any one know how to do this?
or has anyone already done it?
then i would like to know the length of the spokes

greetings louis
Your questions can be answered here.http://www.endless-sphere.com/forums/vi ... 8&start=75 I along with several others have converted mtb to mc rims and tires with great results. Go to the Forum and read through it. If you still have questions, just ask.

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Re: MXUS 3000 Hub Motor

Post by teslanv » Feb 03 2015 2:12am

OK, gents. Here's the low-down.

Justin says that he can get by with just one motor of each winding for testing.

I will cover the cost of 16X4T Winding.

I set up a gofundme page for three additional windings, which would be the 21X3T, 12X5T and the 10X6T windings. I am hoping to raise $750 total ($250 per motor)

If you want to see the MXUS XF40-45H motors added to the Simulator, please make a small donation. I only need 30 people to donate $25 and we are good.

I will add these motors to our first order from MXUS, and Justin says that he should have time to test them by Spring.

Here is the Gofundme page:

http://www.gofundme.com/lcaew0

Thanks for your help.

Barent Hoffman (teslanv)
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Re: MXUS 3000 Hub Motor

Post by madin88 » Feb 03 2015 5:23am

teslanv wrote:Phase resistance for the MXUS XF40-45H V2 (Al Stator) 21X3T Winding (Stock Phase Wires):
0.216V Voltage drop with 3.04A current.
.216/3.04=0.071 Ohms Resistance.

At 120A Phase Current, that will generate (120^2x.071) = 1022 Watts of Loss

KV tested at 565.7 RPM at 48.1V, so 11.76 KV.
2.0A current at No Load.

That's right inline with the Fast Wind Crown...
http://www.ebikes.ca/shop/ebike-parts/m ... 00r24.html
great!!

teslanv, i would like to donate via paypal, but it looks like gofund only supports credit card. could you offer paypal as option?
- 10kW belt drive with Neumotor 8057: [url]viewtopic.php?
- KTM Hardtail Pedelec / eZee V2 6T / 27,5" / Kelly KBSX @ 1,5kW / Torque PAS / CA-V3 / 13s4p Sanyo GA in Shark case

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teslanv   100 MW

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Re: MXUS 3000 Hub Motor

Post by teslanv » Feb 03 2015 8:46am

madin88 wrote:
teslanv wrote: teslanv, i would like to donate via paypal, but it looks like gofund only supports credit card. could you offer paypal as option?
Gofundme only accepts credit cards through WePay and Stripe, it looks like. However if you want to make a direct donation to the project you can send it via PayPal to my email address. barenthoffman@outlook.com
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Re: MXUS 3000 Hub Motor

Post by teslanv » Feb 03 2015 10:38am

Another $50 donation through Paypal, puts our total up to $110 for the MXUS Testing Project.
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